Diarrheagenic Escherichia coli in children from Costa Rica.

Pérez C, Gómez-Duarte OG, Arias ML
Am J Trop Med Hyg. 2010 83 (2): 292-7

PMID: 20682870 · PMCID: PMC2911173 · DOI:10.4269/ajtmh.2010.09-0412

More than 5,000 diarrheal cases per year receive medical care at the National Children's Hospital of Costa Rica, and nearly 5% of them require hospitalization. A total of 173 Escherichia coli strains isolated from children with diarrhea were characterized at the molecular, serologic, and phenotypic level. Multiplex and duplex polymerase chain reactions were used to detect the six categories of diarrheagenic E. coli. Thirty percent (n = 52) of the strains were positive, indicating a high prevalence among the pediatric population. Enteropathogenic E. coli and enteroinvasive E. coli pathotypes were the most prevalent (21% and 19%, respectively). Pathogenic strains were distributed among the four E. coli phylogenetic groups A, B1, B2, and D, with groups A and B1 the most commonly found. This study used molecular typing to evaluate the prevalence of diarrheagenic E. coli reported in Costa Rica and demonstrated the importance of these pathotypes in the pediatric population.

MeSH Terms (12)

Anti-Bacterial Agents Bacterial Adhesion Child, Preschool Costa Rica Diarrhea Drug Resistance, Bacterial Escherichia coli Escherichia coli Infections Humans Infant Phylogeny Serotyping

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